US9662709B2 - Method for producing a fuel injection element having channels, and a fuel injection element - Google Patents

Method for producing a fuel injection element having channels, and a fuel injection element Download PDF

Info

Publication number
US9662709B2
US9662709B2 US13/513,054 US201013513054A US9662709B2 US 9662709 B2 US9662709 B2 US 9662709B2 US 201013513054 A US201013513054 A US 201013513054A US 9662709 B2 US9662709 B2 US 9662709B2
Authority
US
United States
Prior art keywords
fuel injection
channels
nozzle
fuel
injection nozzle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active, expires
Application number
US13/513,054
Other languages
English (en)
Other versions
US20120261497A1 (en
Inventor
Arno Friedrichs
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Arno Friedrichs Hartmetall & Co KG GmbH
Original Assignee
Arno Friedrichs
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Arno Friedrichs filed Critical Arno Friedrichs
Publication of US20120261497A1 publication Critical patent/US20120261497A1/en
Application granted granted Critical
Publication of US9662709B2 publication Critical patent/US9662709B2/en
Assigned to ARNO FRIEDRICHS HARTMETALL GMBH & CO. KG reassignment ARNO FRIEDRICHS HARTMETALL GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FRIEDRICHS, ARNO
Active legal-status Critical Current
Adjusted expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/20—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/003—Apparatus or processes for treating or working the shaped or preshaped articles the shaping of preshaped articles, e.g. by bending
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
    • B28B3/26—Extrusion dies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F2005/004—Article comprising helical form elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/90—Selection of particular materials
    • F02M2200/9007—Ceramic materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/90—Selection of particular materials
    • F02M2200/9053—Metals

Definitions

  • the invention relates to a method of producing a fuel injection element having channels and to a fuel injection element.
  • This fuel injection element can be a fuel injection nozzle, such as can be used in a fuel injection valve of a motor vehicle equipped with a petrol engine or a diesel engine, or can be an insert for a fuel injection nozzle.
  • Fuel injection nozzles comprise a nozzle body which is provided in the region of its nozzle tip with one or more channels. In operation of the vehicle fuel at high pressure is injected through these channels into a cylinder chamber of the engine.
  • the channel or channels is or are of rectilinear form in such a manner that the fuel is injected in fan-shape into the cylinder chamber. It is thereby achieved that air and fuel intermix in the cylinder chamber in desired manner in order to cause combustion processes.
  • the channels provided in the region of the nozzle tip are formed in the nozzle body by means of, for example, eroding or drilling, wherein a number of working steps is necessary in correspondence with the number of channels.
  • a fuel injection nozzle is known from DE 199 15 874 B4. This comprises a valve needle, a valve seat with a valve opening and a metal injection-moulded nozzle tip.
  • An injection opening which is formed as a fan-shaped slot with a predetermined opening angle, is provided in the nozzle tip. It is thereby to be achieved that the fuel injection nozzle can be produced in simpler manner and economically.
  • a method of producing a nozzle aperture plate for an injection nozzle and an injection nozzle equipped with a nozzle aperture plate of that kind are known from DE 102 46 403 B4.
  • the nozzle aperture plate has an upper surface, a lower surface and a passage.
  • the upper surface and the lower surface respectively define, with the passage, edges which are rounded.
  • the surfaces of the rounded edges and the upper and lower surface are covered by tracks formed by a blasting process.
  • the object of the invention consists in indicating a new method, which is economic and can be realised in simple manner, for producing a fuel injection element having channels.
  • the advantages of the invention consist particularly in that the channels, which are produced by means of the claimed method, of the fuel injection element can be produced at the same time. This means, by comparison with known methods, a substantial saving of time for formation of the channels in the fuel injection element. Moreover, the channels produced by means of the claimed method have, by comparison with production by means of eroding, an improved surface. Moreover, it is possible to produce by the method according to the invention very fine channels with a diameter in the region of, for example, between 0.05 millimeters and 0.5 millimeters or even smaller.
  • the exit angle of the channels can vary based on the spacing of the channels from the central longitudinal axis of the element. The larger the spacing, the greater the exit angle. This makes it possible in advantageous manner to so select the exit angle that atomisation of the fuel delivered by the fuel injection element to the cylinder chamber of the motor vehicle is improved by comparison with the prior art.
  • the channels of a nozzle can also have different diameters. This has the consequence that the mixing of the fuel with air is also improved, which in turn leads to an improved combustion process, which produces a lower carbon dioxide emission than known fuel injection elements.
  • a fuel injection element according to the invention is in advantageous manner a fuel injection nozzle or an insert for a fuel injection nozzle. It can consist of hard metal, ceramic or steel. A fuel injection element of that kind can be produced comparatively simply, readily withstands the high demands in operation and has a high service life.
  • FIG. 1 shows a diagram of a longitudinal section through a fuel injection nozzle for clarification of a first form of embodiment for a fuel injection element according to the invention
  • FIG. 2 shows a diagram of a longitudinal section through a fuel injection nozzle for clarification of a second form of embodiment for a fuel injection element according to the invention
  • FIG. 3 show a sectional illustration of the fuel injection element according to FIG. 2 and
  • FIG. 4 shows a flow chart for explanation of a method according to the invention.
  • FIG. 1 shows a diagram of a longitudinal section through a fuel injection nozzle for clarification of a first form of embodiment of the invention.
  • the illustrated fuel injection nozzle 1 comprises a nozzle body 2 having an insert 3 adjacent the nozzle tip 2 a .
  • This insert 3 which is a fuel injection element, is constructed in the form of a plate, consists of hard metal, ceramic or steel and is fixedly connected with the nozzle body, for example by mechanically positive coupling, screw-connection, shrink-fitting or sintering.
  • the insert 3 has continuous channels which connect the nozzle interior space 7 of the fuel injection nozzle 1 with the interior space 8 of a cylinder of the motor.
  • Fuel which is present in the nozzle interior space 7 under high pressure, is respectively sprayed through these channels into the cylinder space 8 .
  • the channels of which in FIG. 1 merely two are shown and are denoted by the reference numerals 4 and 5 , each extend helically through the insert 3 .
  • This helical course is selected in such a manner that the fuel issues from the insert 3 at one or more desired angles. Through suitable selection of this angle it is possible to achieve an improved distribution of the fuel in the cylinder space and thereby an improved atomisation of the fuel. This in turn improves the mixing of the fuel with air within the respective cylinder and thereby the combustion process.
  • FIG. 2 shows a diagram of a longitudinal section through a fuel injection nozzle for clarification of a second form of embodiment of the invention.
  • the illustrated fuel injection nozzle 1 which is a fuel injection element, comprises a nozzle body 2 which has continuous channels in the region of the nozzle tip 2 a . These channels connect the nozzle interior space 7 of the fuel injection nozzle 1 with the interior space 8 of a cylinder of the motor. Fuel, which is present in the nozzle interior space under high pressure, is sprayed through these channels into the cylinder space 8 .
  • the channels of which in FIG. 2 merely two are shown and are denoted by the reference numerals 4 and 5 , each extend helically through the region of the nozzle tip 2 a .
  • This helical course is selected in such a manner that the fuel issues from the nozzle body 2 at one or more desired angles. Through suitable selection of this angle an improved distribution of the fuel in the cylinder chamber and thereby an improved atomisation of the fuel can be achieved. This in turn improves the mixing of the fuel with air within the respective cylinder and thereby the combustion process.
  • the nozzle body 2 is of integral construction and consists of hard metal, ceramic or steel.
  • Fuel issuing from the channels 4 and 5 is denoted in FIGS. 1 and 2 by the reference numeral 6 .
  • FIG. 3 shows a sectional illustration of the fuel injection nozzle according to FIG. 2 in the direction of the section line S-S shown in FIG. 2 . It is apparent that the fuel injection nozzle has in the region of its nozzle tip a plurality of channels, the inlets of which are approximately uniformly distributed in the region of the nozzle tip.
  • FIG. 4 shows a flow chart for clarification of a method for producing a fuel injection element having channels.
  • Step S 1 production takes place—by means of an extrusion tool—of a body consisting of a plastics material and having rectilinearly extending channels.
  • This plastics material is hard-metal powder provided with a plasticiser, ceramic powder provided with a plasticiser or steel powder provided with a plasticiser.
  • the extrusion tool has in its interior, for example, a thread holder to which are fastened threads which extend to the region of the nozzle mouthpiece of the extrusion tool and serve as space-reserving means of the channels for the plastics material flow extruded by the extrusion tool.
  • Step S 2 twisting of the body having rectilinearly extending channels is carried out so as to provide a body, which consists of plastics material, with helically extending channels.
  • This twisting is preferably produced in that the nozzle mouthpiece of the extrusion tool is constructed to be rotatable and is rotated during the extrusion process.
  • the body which leaves the extrusion tool and consists of plastics material and which already has helically extending channels, is sintered outside the extrusion tool in a Step S 3 .
  • the sintered body is subsequently cut to length in a Step S 4 in order to provide a fuel injection element having helically extending channels.
  • Step S 2 An alternative consists in that the twisting taking place in Step S 2 is produced in that the rod-shaped body of plastics material leaving the extrusion tool is initially cut to length outside the extrusion tool and then subjected to a twisting in which, with support over its entire length on a support, it is subjected by means of a friction surface arrangement to a rolling motion at a speed which changes linearly and constantly over the length of the body.
  • This twisted body is subsequently sintered in a Step S 3 and thereafter cut to length in a Step S 4 in order to provide fuel injection elements in the form of inserts 3 , as illustrated by way of FIG. 1 .
  • the sintered and cut-to-length body can if required still be subjected to further processing, for example a grinding process.
  • the method described in the foregoing by way of embodiments enables simplified production of fuel injection elements having fuel injection channels.
  • the extrusion method used moreover not only delivers an improved surface of the channels, but also enables production of all channels in a single working step.
  • These channels can, in advantageous manner, also have different diameters.
  • by means of a method according to the invention it is possible to produce very fine channels of which the diameter can lie in the range between 0.5 millimeters and 0.05 millimeters or if required can be even smaller.
  • the exit angle of the channels from the fuel injection element increases with increasing spacing of the respective channel from the centre axis of the element. Channels lying in the proximity of the centre axis spray out the fuel substantially in the direction of the centre axis. With increasing spacing of the channels from the centre axis, spraying out of the fuel takes place at an angle which increasingly differs from the direction of the centre axis.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Fuel-Injection Apparatus (AREA)
US13/513,054 2009-12-29 2010-10-29 Method for producing a fuel injection element having channels, and a fuel injection element Active 2031-06-09 US9662709B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102009060844 2009-12-29
DE102009060844A DE102009060844A1 (de) 2009-12-29 2009-12-29 Verfahren zur Herstellung eines Kanäle aufweisenden Kraftstoffeinspritzelementes sowie Kraftstoffeinspritzelement
DE102009060844.3 2009-12-29
PCT/EP2010/066444 WO2011079979A1 (de) 2009-12-29 2010-10-29 Verfahren zur herstellung eines kanäle aufweisenden kraftstoffeinspritzelementes sowie kraftstoffeinspritzelement

Publications (2)

Publication Number Publication Date
US20120261497A1 US20120261497A1 (en) 2012-10-18
US9662709B2 true US9662709B2 (en) 2017-05-30

Family

ID=43734148

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/513,054 Active 2031-06-09 US9662709B2 (en) 2009-12-29 2010-10-29 Method for producing a fuel injection element having channels, and a fuel injection element

Country Status (8)

Country Link
US (1) US9662709B2 (zh)
EP (1) EP2519368B1 (zh)
JP (1) JP6037839B2 (zh)
KR (1) KR101721420B1 (zh)
CN (1) CN102712043B (zh)
DE (1) DE102009060844A1 (zh)
ES (1) ES2672786T3 (zh)
WO (1) WO2011079979A1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013018146B4 (de) 2013-12-04 2021-02-25 Arianegroup Gmbh Einspritzelement für eine Raketenbrennkammer
WO2015138425A2 (en) 2014-03-10 2015-09-17 G.W. Lisk Company, Inc. Injector valve
US10036356B2 (en) 2015-04-13 2018-07-31 Caterpillar Inc. Ducted combustion systems utilizing duct-exit tabs
CN112412677B (zh) * 2020-11-26 2022-01-11 北京理工大学 一种高强化柴油机卷流喷嘴

Citations (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4360162A (en) * 1979-05-18 1982-11-23 Robert Bosch Gmbh Fuel injection nozzle with controlled cross-section of injection for internal combustion engines
JPS6158967A (ja) 1984-08-30 1986-03-26 Hitachi Metals Ltd セラミツク燃料噴射ノズルの製造方法
WO1992022390A1 (de) 1991-06-19 1992-12-23 Gottlieb Gühring Kg Strangpresswerkzeug zur herstellung eines hartmetall-oder keramikstabes mit gedrallten innenbohrungen
JPH05231271A (ja) 1992-02-26 1993-09-07 Isuzu Motors Ltd 燃料噴射ノズル
JPH08189443A (ja) 1994-11-10 1996-07-23 Unitec Kk 燃焼装置の噴射ノズル
US5586726A (en) 1994-07-29 1996-12-24 Zexel Corporation Collision type fuel injection nozzle and method of manufacturing the nozzle
JPH10288131A (ja) 1997-04-11 1998-10-27 Yanmar Diesel Engine Co Ltd ディーゼル機関の噴射ノズル
JPH10311264A (ja) * 1997-05-10 1998-11-24 Unisia Jecs Corp フューエルインジェクタ
CN1209521A (zh) 1997-08-25 1999-03-03 Abb研究有限公司 热发生器用的燃烧器
DE19915874A1 (de) 1998-04-10 1999-10-14 Aisan Ind Kraftstoffeinspritzdüse
US6029913A (en) * 1998-09-01 2000-02-29 Cummins Engine Company, Inc. Swirl tip injector nozzle
DE10049517A1 (de) 2000-10-06 2002-04-18 Bosch Gmbh Robert Brennstoffeinspritzventil
US20020140125A1 (en) 1999-09-09 2002-10-03 Arno Friedrichs Method and device for producing a sintered metal blank with internally disposed helical recesses
DE10246403A1 (de) 2001-10-05 2003-04-24 Denso Corp Einspritzdüse und Verfahren zum Herstellen einer Einspritzdüse
JP2004076723A (ja) 2002-06-20 2004-03-11 Denso Corp 燃料噴射装置
WO2004030850A1 (en) 2002-10-07 2004-04-15 Man B & W Diesel A/S Method of manufacturing a nozzle for a fuel valve in a diesel engine, and a nozzle
US20040129806A1 (en) * 2001-10-02 2004-07-08 Dantes Guenter Fuel injection valve
US20040178287A1 (en) * 2003-02-05 2004-09-16 Denso Corporation Fuel injection device of internal combustion engine
CN2729342Y (zh) 2004-06-04 2005-09-28 徐小宁 新型燃油雾化喷嘴
US20060192036A1 (en) * 2005-02-25 2006-08-31 Joseph J M Fuel injector including a multifaceted dimple for an orifice disc with a reduced footprint of the multifaceted dimple
CN2893431Y (zh) 2006-02-14 2007-04-25 招启峰 燃烧器喷油嘴
CN101160459A (zh) 2005-04-19 2008-04-09 洋马株式会社 直喷柴油发动机
JP2008128146A (ja) 2006-11-22 2008-06-05 Hitachi Ltd 燃料噴射弁
CN101206029A (zh) 2006-12-21 2008-06-25 中国科学院工程热物理研究所 一种微型燃气轮机燃烧室喷嘴
WO2009055315A2 (en) * 2007-10-21 2009-04-30 Deyang Hou A variable orifice fuel injector with a single needle valve and engines using the same
DE102009000172A1 (de) 2009-01-13 2010-07-15 Robert Bosch Gmbh Injektor-Bauteil, Kraftstoff-Injektor sowie Verfahren zum Herstellen eines Injektor-Bauteils
US7841544B2 (en) * 2005-10-11 2010-11-30 Translume, Inc. Fuel injector
US8225602B2 (en) * 2009-06-11 2012-07-24 Stanadyne Corporation Integrated pump and injector for exhaust after treatment
US20120305674A1 (en) * 2009-12-09 2012-12-06 Martin Buehner Fuel injector

Patent Citations (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4360162A (en) * 1979-05-18 1982-11-23 Robert Bosch Gmbh Fuel injection nozzle with controlled cross-section of injection for internal combustion engines
JPS6158967A (ja) 1984-08-30 1986-03-26 Hitachi Metals Ltd セラミツク燃料噴射ノズルの製造方法
WO1992022390A1 (de) 1991-06-19 1992-12-23 Gottlieb Gühring Kg Strangpresswerkzeug zur herstellung eines hartmetall-oder keramikstabes mit gedrallten innenbohrungen
US5438858A (en) 1991-06-19 1995-08-08 Gottlieb Guhring Kg Extrusion tool for producing a hard metal rod or a ceramic rod with twisted internal boreholes
JPH05231271A (ja) 1992-02-26 1993-09-07 Isuzu Motors Ltd 燃料噴射ノズル
US5586726A (en) 1994-07-29 1996-12-24 Zexel Corporation Collision type fuel injection nozzle and method of manufacturing the nozzle
JPH08189443A (ja) 1994-11-10 1996-07-23 Unitec Kk 燃焼装置の噴射ノズル
JPH10288131A (ja) 1997-04-11 1998-10-27 Yanmar Diesel Engine Co Ltd ディーゼル機関の噴射ノズル
JPH10311264A (ja) * 1997-05-10 1998-11-24 Unisia Jecs Corp フューエルインジェクタ
CN1209521A (zh) 1997-08-25 1999-03-03 Abb研究有限公司 热发生器用的燃烧器
DE19736902A1 (de) 1997-08-25 1999-03-04 Abb Research Ltd Brenner für einen Wärmeerzeuger
US6102692A (en) 1997-08-25 2000-08-15 Abb Alstom Power (Switzerland) Ltd Burner for a heat generator
DE19915874A1 (de) 1998-04-10 1999-10-14 Aisan Ind Kraftstoffeinspritzdüse
US6378792B2 (en) 1998-04-10 2002-04-30 Aisan Kogyo Kabushiki Kaisha Fuel injection nozzle
US6029913A (en) * 1998-09-01 2000-02-29 Cummins Engine Company, Inc. Swirl tip injector nozzle
EP1120554A1 (en) 1998-10-05 2001-08-01 Yanmar Diesel Engine Co. Ltd. Combustion system for direct injection diesel engines
US20020140125A1 (en) 1999-09-09 2002-10-03 Arno Friedrichs Method and device for producing a sintered metal blank with internally disposed helical recesses
JP2004510916A (ja) 2000-10-06 2004-04-08 ローベルト　ボツシユ　ゲゼルシヤフト　ミツト　ベシユレンクテル　ハフツング 燃料噴射弁
DE10049517A1 (de) 2000-10-06 2002-04-18 Bosch Gmbh Robert Brennstoffeinspritzventil
US6964383B2 (en) * 2000-10-06 2005-11-15 Robert Bosch Gmbh Fuel injector
US20040129806A1 (en) * 2001-10-02 2004-07-08 Dantes Guenter Fuel injection valve
US7003880B2 (en) 2001-10-05 2006-02-28 Denso Corporation Injector nozzle and method of manufacturing injector nozzle
DE10246403A1 (de) 2001-10-05 2003-04-24 Denso Corp Einspritzdüse und Verfahren zum Herstellen einer Einspritzdüse
JP2004076723A (ja) 2002-06-20 2004-03-11 Denso Corp 燃料噴射装置
US6994279B2 (en) * 2002-06-20 2006-02-07 Denso Corporation Fuel injection device
CN100579690C (zh) 2002-10-07 2010-01-13 曼B与W狄赛尔公司 制造柴油机中燃油阀的喷嘴的方法及喷嘴
WO2004030850A1 (en) 2002-10-07 2004-04-15 Man B & W Diesel A/S Method of manufacturing a nozzle for a fuel valve in a diesel engine, and a nozzle
US20040178287A1 (en) * 2003-02-05 2004-09-16 Denso Corporation Fuel injection device of internal combustion engine
CN2729342Y (zh) 2004-06-04 2005-09-28 徐小宁 新型燃油雾化喷嘴
US20060192036A1 (en) * 2005-02-25 2006-08-31 Joseph J M Fuel injector including a multifaceted dimple for an orifice disc with a reduced footprint of the multifaceted dimple
CN101160459A (zh) 2005-04-19 2008-04-09 洋马株式会社 直喷柴油发动机
US20090025681A1 (en) 2005-04-19 2009-01-29 Takeshi Takahashi Direct Injection Diesel Engine
US7841544B2 (en) * 2005-10-11 2010-11-30 Translume, Inc. Fuel injector
CN2893431Y (zh) 2006-02-14 2007-04-25 招启峰 燃烧器喷油嘴
JP2008128146A (ja) 2006-11-22 2008-06-05 Hitachi Ltd 燃料噴射弁
CN101206029A (zh) 2006-12-21 2008-06-25 中国科学院工程热物理研究所 一种微型燃气轮机燃烧室喷嘴
WO2009055315A2 (en) * 2007-10-21 2009-04-30 Deyang Hou A variable orifice fuel injector with a single needle valve and engines using the same
DE102009000172A1 (de) 2009-01-13 2010-07-15 Robert Bosch Gmbh Injektor-Bauteil, Kraftstoff-Injektor sowie Verfahren zum Herstellen eines Injektor-Bauteils
US8225602B2 (en) * 2009-06-11 2012-07-24 Stanadyne Corporation Integrated pump and injector for exhaust after treatment
US20120305674A1 (en) * 2009-12-09 2012-12-06 Martin Buehner Fuel injector

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
European Office Action in EP 10 779 492.7 received issued Feb. 28, 2017 with English translation of relevant parts.
International Search Report of PCT/EP2010/066444, Mar. 31, 2011.
Response to the Written Opinion of the International Search Authority, Jul. 26, 2011.

Also Published As

Publication number Publication date
EP2519368A1 (de) 2012-11-07
KR20120112667A (ko) 2012-10-11
EP2519368B1 (de) 2018-03-21
CN102712043A (zh) 2012-10-03
WO2011079979A1 (de) 2011-07-07
US20120261497A1 (en) 2012-10-18
CN102712043B (zh) 2014-12-10
JP6037839B2 (ja) 2016-12-07
JP2013515908A (ja) 2013-05-09
ES2672786T3 (es) 2018-06-18
DE102009060844A1 (de) 2011-06-30
KR101721420B1 (ko) 2017-03-30

Similar Documents

Publication Publication Date Title
US9662709B2 (en) Method for producing a fuel injection element having channels, and a fuel injection element
US9782784B2 (en) Nozzle head for a spray device
US8544770B2 (en) Spray hole profile
US5029759A (en) Curved hole machining method and fuel injector formed thereby
JP5319780B2 (ja) 噴射ノズル
EP3173614B1 (de) Düsenbaugruppe für einen kraftstoffinjektor sowie kraftstoffinjektor
KR102144561B1 (ko) 필터 제트 디렉터 유닛 및 고압 노즐 유닛
EP2943678B1 (de) Vorrichtung zum versprayen von flüssigkeit in einen brennraum
EP2650527B1 (de) Vorrichtung zum Einspritzen von Brennstoff in einen Brennraum
CN110805512A (zh) 一种带扭转式复合孔的喷嘴
DE102009005528A1 (de) Zweistoffdüse
CN100587253C (zh) 用于内燃机的燃料喷射器
CN208358002U (zh) 一种料筒用粉末等离子堆焊内孔枪
US20140203109A1 (en) Injection nozzle for an internal combustion engine
US8608093B2 (en) Fuel injector having a high-pressure inlet
DE102014117439A1 (de) Vorrichtung zum Vernebeln oder Versprayen von Flüssigkeit in einen Betriebsraum
EP2365207A1 (de) Einspritzdüse für eine verbrennungskraftmaschine
JPH04227869A (ja) 平面形噴射ノズル
EP2136927B1 (de) Expansionsdüse zum thermischen spritzen und verfahren zu deren herstellung
US7108201B2 (en) Injection valve
CN1469040A (zh) 一种改进的柴油内燃机油嘴
DE102011075409A1 (de) Mischsystem für modulierenden Brenner und Drallkörper für Mischsystem
CN209901586U (zh) 一种粉末静电喷房
CN85102659A (zh) 小压力室多孔喷油器
CH705454A1 (de) Einspritzdüse mit Flaschenhals-Spritzlöchern.

Legal Events

Date Code Title Description
STCF Information on status: patent grant

Free format text: PATENTED CASE

AS Assignment

Owner name: ARNO FRIEDRICHS HARTMETALL GMBH & CO. KG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FRIEDRICHS, ARNO;REEL/FRAME:051115/0189

Effective date: 20191121

FEPP Fee payment procedure

Free format text: ENTITY STATUS SET TO UNDISCOUNTED (ORIGINAL EVENT CODE: BIG.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

MAFP Maintenance fee payment

Free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Year of fee payment: 4